The XTAR MX4 Charger is a small but mighty gadget that works like a mini mixer for charging different batteries. It's a handy solution for charging various types, including 1.5V, 3.6/3.7V Li-ion, 3.2V LiFePO4, and 1.2V Ni-MH batteries. This charger is great because it suits a lot of different situations where you might need to charge batteries.

The MX4 Charger is a clever charger that can recognize the type of battery you're charging. This feature makes sure you won't accidentally charge it the wrong way, keeping everything safe. It's got two modes: one for regular batteries like 3.6/3.7V & 1.5V Li-ion and 1.2V Ni-MH, and another for special LiFePO4 batteries like 3.2V & 1.5V Li-ion and 1.2V Ni-MH. It's like having two charging options in one.

Additionally, the MX4 charger is equipped with an automatic stop feature that effectively halts the charging process upon reaching full battery capacity. This not only promotes longer battery life but also optimizes overall performance and enhances safety during charging. The MX4 charger comes with some really handy features that make it stand out. First off, there's the 0V activation function, which can bring back batteries that have completely run out of power. Then, there's a smart recognition feature that knows the safe way to charge 3.6V/3.7V Li-ion, 1.5V Li-Ion, and Nickel-Metal Hydride (NiMH) batteries. The charger is even equipped to handle Lithium Iron Phosphate (LiFePO4) batteries and lets you know if there's anything unusual happening during the charging process.

On the side of the charger, there's a plastic switch that lets you easily switch between charging LiFePO4 and Li-ion batteries. Another cool feature is the "activation reminder and abnormal warning function." This is like having a smart assistant that reminds you when to activate certain features and warns you if anything weird is going on during the charging process. It's all about making sure you have a thorough and safe charging experience with the XTAR MX4 Charger. When it comes to how it's built, the MX4 charger is made to be easy for you to use. You can easily put batteries in and take them out. The outer part is made of fire-resistant plastic, and it sits on four small plastic feet to stay steady. Inside, there are four slots with springs that can charge different sizes of batteries.

In terms of design, the Xtar MX4 is similar to the Xtar L4 charger, as both can charge four batteries at once. The main difference is that the MX4 charger is bigger (10cm deep x 9.5cm wide x 2.5cm thick) and can handle various battery sizes, including 18650 batteries, AA batteries, and AAA batteries with different compositions like LiFePO4, Li-ion, and NiMH. On the other hand, the L4 charger can only handle AA and AAA NiMH batteries and Li-ion batteries. So, if you need more flexibility in charging different types and sizes of batteries, the MX4 is the way to go.

In terms of how it works, the Xtar MX4 operates similarly to the L4 charger. It has LED lights that show three charging statuses: 1) a blinking green light when the battery is charging, 2) a solid green light when the battery is fully charged, and 3) a solid red light to indicate that the battery needs charging. However, it doesn't provide details on how much power is left in the battery, which would have been helpful. Unlike the VCL2 charger, the MX4 doesn't have an LCD display to show the charging current and battery voltage, giving you an idea of the overall health of your battery.

In terms of accessories, the Xtar MX4 includes a top-notch charging cable for your convenience. This cable stands out as a quality, branded accessory, crafted with a durable and robust design. The cable features a thick rubber construction and is equipped with USB-A to USB-C connections, ensuring both durability and compatibility with a wide range of devices.